Skip to main content

    Updated biological parameters of Dissostichus mawsoni at Subarea 48.6

    Request Meeting Document
    Document Number:
    WG-SAM-2019/36
    Author(s):
    T. Okuda and R. Sarralde Vizuete
    Submitted By:
    Dr Takehiro Okuda (Japan)
    Approved By:
    Ms Doro Forck (CCAMLR Secretariat)
    Abstract

    To achieve the milestone “Updating biological parameters for the population, suitable for inclusion in CASAL: Age Length Key (ALK), growth curves, maturity ogives” (SC-CAMLR-37 Report, para 3.130), this paper represents the updated length-weight relationship, growth curve, ALK, and maturity ogives as biological parameters of Dissostichus mawsoni at Subarea 48.6 up to the 2017/18 fishing season collected from a collaborative research program among Japan, South Africa, and Spain.

    Due to the lack of sufficient aging data, it is not possible at present to calculate annual and sex-specific growth curve, ALK, and maturity ogive. Continuing both data collection and otolith aging will lead to the implementation of CASAL stock assessment with rich biological information.

    Top of page

    © Copyright - Commission for the Conservation of Antarctic Marine Living Resources 2021, All rights reserved.

    Site by Eighty Options